Selvage-singeing machine.



Nu. 642,207. Patented Ian. 30, I900. J. E. COCHRANE.

SELVAGE SINGEING MACHINE.

(Application filed Apr. 22, 1897.) (No Model.) 2 Sheets-Sheet l hi NWWW, mm

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Patented Jan. 30, I900.

flu. 642,207.

J. E. CUCHRANE.

SELVAGE SINGEING MACHINE.

(Applicntionfiled Apr. 22, 1897.)

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(No Model.)

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NiTnn STATES PATENT OFFICE.

JAMES EUGENE COCIIRANE, OF MALDFN, MASSACHUSETTS.

SELVAGE-SINGEING MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 642,207, dated January30, 1900.

Application filed April 22, 1897. Serial No. 633,288. (No model.)

To all whom it may concern.-

Be it known that 1, JAMES EUGENE Coon- BANE, a citizen of the UnitedStates of America, and a resident of Malden, in the State ofMassachusetts, have invented a new and useful Improvement in SelvageSingeing Machines, of which the following is a specification.

In the accompanying drawings, Figure 1 is an elevation with part of thesupportingframe in section. Fig. 2 is a plan view looking from abovedown upon the machine and showing the machine in operation, with a rollof carpet passing through the machine and with gas-jets in the positionthey occupy in actual operation. Fig. 3 is a plan view looking fromabove down on the machine, the roll of carpet being removed and thegas-jets being shown in the position occupied by them when not in actualoperation; and Fig. 4 is a drawing of details illustrating the mechanismfor protecting the selvage edges of the carpet and for adjusting thesame to difierent widths of carpet.

My invention has for its object the use of a gas or similar flame forthe purpose of singeing off the loose fibers of wool and other materialwhich exist along the selvages of carpet. As is well known, on leavingthe loom on which it is woven the surface and selvage edges of thecarpet are too rough to be presentable, and in particular with velvetcarpets it is extremely uneven and unfit for market. It has long beencustomary to run the carpet after it leaves the loom through a,

shearing-machine, which shears the pile-surface of the carpet evenly;but it has been impracticable to use any form of shearing-machine toshear or clip the overhanging edges of the pile at the selvage, andthese edges have generally been trimmed by hand in an irregular andimperfect manner prior to the stitching or sewing together of the carpetat the selvage, and in consequence of the irregularity of the selvage aridge or irregular projection has generally existed in sewed carpets astheyare laid upon the floor. The mechanism invented by me makes use of asuitable gasflame, which is caused to play upon the selvage edges ofcarpet as the carpet is drawn rapidly along, the selvage edges beingsuitably protected from undue exposure to the flame. I have found thatwith myimproved mechanism all rough projecting fibers are removed andthe selvage edges of the pile are left uniform and regular, so that whenthe carpet is sewedit is almost impossible to detect the join betweenthe separate pieces of carpet along the selvage.

My invention consists of suitable mechanism mounted on a table or frameA A A. Under this frame and upon the support I) and by means of theshaft or spindle b is mounted the roll of carpet B the selvage edges ofwhich are to be singed or trimmed, the rough edges of the selvage beingmost distinctly shown in Fig. 2 of the accompanying drawings. From theroll the carpet is drawn underneath the footboard D, upon which theworkman operating the machine may stand, thence over theloosely-revolving rolls 0 c c 0 and thence to any suitable mechanism forshearing the carpet ready for the market. The loosely-revolvin g rolls 0c c are mounted in suitable supports, as shown, on the frame or table A.On the top of the frame A are two cross-bars E E, having the slots 6 e,in which slots move the selvage-protectors F F. The carpet B in passingthrough the machine is made to pass through the slots or grooves inthese two selvage-protectors F F, the shape of the protectors being suchas to leave exposed only the selvage of the carpet, and this only for asuitable length or distance, so that the gas-flame only operates on theselvage for an instant. In order that the selvage-protectors mayaccomodate themselves to any width of carpet and to the usualirregularities in width of the same piece of carpet at differentportions of its length, they are mounted so as to slide upon thecrosssupports E E within the slots 6 e, as is distinctly shown in Fig. 3and in detail in Fig. A. A cord or string f unites the twoselvageprotectors, and to this cordis hunga suitable weight j", whichcauses the necessary tension upon the cord f, so as to draw theselvageprotectors F F against the edges of the carpet, while yetpermitting them to accommodate themselves to variations in width of thecarpet. The selvage-protectors at the point nearest the gas-flame riseabove the surface of the carpet, so as to prevent the gas-flame fromplaying over the pile-surface and so as to confine its operation to theselvage edges.

Two ordinary gas-pipes H H are mounted one at each side of the frameworkof the machine. To the top of each of these gas-pipes is attached ajointed bracket h h, which ends in an ordinary Bunsen burner, giving asmokeless flame. To the bracket-arms nearest the gas-flame are attachedthe pivoted levers 71. 7?, which are pivoted at their point ofconnection with the frame h This frame h moves in the slots ordepressions h h. When the machine is not in operation or when it isdesired to remove the gas-flames, so that they do not play upon theselvage of the carpet,

the frame 71 as shown in Fig. 3, is pushed by the operator forward, whenby means of the jointed connections h, h, and h the gasflame or thenozzle from which it issues is pushed into the position shown in Fig. 3.When it is desired to have the gas-flame play upon the selvage, theframe h is drawn back into the position shown in Fig. 2, when by reasonof the same jointed connection the gas fiame is brought into position soas to play directly upon the selvage as it passes through theselvage-protectors F F, as shown in Fig. 2.

I have found that the process of singeing or trimming the selvage justdescribed leaves so little charred material that ordinary handlingincident to the subsequent shearing of carpet eifectually removes it;but if itis considered in any way necessary to brush off the calcinedportions ofthe pile at the selvage it is evident that an ordinary smallbrush can be screwed or mounted on any portion of the frame A Where itsbristles will be in position to act upon the selvage, so as effectuallyto remove any burned or calcined portions of the pile.

What I claim as my invention, and wish to secure by Letters Patent, is-

1. -In a selvage-singeing machine, the adj ustable gas-brackets andselvage-protectors combined and operating substantially as described.

2. In a selvage-singeing machine, the adjustable gas-brackets and theselvage-protectors, F, F, with means, as the cord and weight, f, f,automatically to adjust the protectors to varying widths of carpet,substantially as described.

3. In a selvage-singeing machine, the gasbrackets, 77., h, theadjusting-levers, 71 h and frame 71/3, in combination with the automaticadjusting selvage-protectors F, F, moving in the slots 6, e, situate onthe bars E,E, substantially as and for the purposes described.

4.. In a selvage-singeing machine, the crossbars E, E, with the slots,e, e, the selvageprotectors, F, F, and means, as the cord and weight, f,f, automatically to adjust the protectors to varying widths of carpet.

In testimony that I claim the foregoing as myinvention I have signed myname, in presence of two witnesses, this 5th day of April,

Witnesses:

J. R. COCHRANE, FRANK R. KINGMAN.

